Hay-stacker.



No.- 674,495. Patented May 2|, 190i.

W. A. CAVETT.

HA'Y STACKER.

lxcatzon fil ed Oct. 8, 1900.) Mo l-) 2 sheetssheet Patented May 21,l90l.

w, A. CAVETT.

H A Y 8 TA 6 K E R.

(Applicatipu filed Oct. 8, 1900.)

2 Sheets$heet 2,

(No Model.)

WJV-

lgazgier,

UNITED STATE ATENT FFICE.

WILLIAM A. CAVETT, OF KIRKSVILLE, MISSOURI, ASSIGNOR OF ONE-HALF TOHAYDEN A. PARSONS, OF LAPLATA, MISSOURI.

HAY-'STACKER.

SPECIFICATION forming part of Letters Patent N 0. 674,495, dated May 21,1901.

' Application filed October 8, 1900. Serial No. 32,397. (No model.) 7

To all whom, it Wtcty concern;

Be it known that 1, WILLIAM A. CAVETT, a citizen of the United States,residing at Kirksville, in the county of Adair and State of Missouri,have invented a new and useful Hay-Stacker, of which the following is aspecification.

My invention is an improved hay-stacker; and it consists in the peculiarconstruction and combination of devices hereinafter fully set forth, andpointed out in the claims.

In the accompanying drawings, Figure 1 is v a perspective view of ahay-stacker embodying my improvements, showing the fork lowered. Fig. 2is a detail view. Fig. 3 is a vertical longitudinal sectional viewshowing'the fork raised to its highest position in full lines and in anintermediate position in dotted lines.

The ground or base frame 1 comprises the sills or runners 2 and thecross-bars 3 4 5. The cross-bar 3 is disposed at the end of theground-frame which I will term the inner end, the cross-bar at isdisposed near the center of the ground-frame, and the cross-bar 5 isdisposed near the outer end thereof. A pair of standards 6 rise from thecross-bar 3, and a differential pulley 7 has its bearings in the saidstandards. Said difierential pulley has the larger section 8 and thesmaller section 9. A direction sheave 0r pulley 10 is supported on thecross-bar 3, and an operating-rope 11 is attached to the larger pulleyor section 8 and is adapted to be coiled thereon and to be uncoiledtherefrom, and said operating-rope passes around one side of thedirection-sheave 10, as shown. The standards 6 are braced by means ofbars 12. Any other suitable means may be employed for bracing saidstandards. A stop-frame 13 connects the cross-bars 4 5, and saidstop-frame, which is of the form here shown, is provided with across-bar 14 at its upper side.

The fork-frame 15 has the extensible bars 16, forming the sides thereof,the inner ends of which are pivotally connected to the sills or runnersof the ground-frame near the inner end of the latter, as at 17. The bars16 comprise the inner pivotal sections a, and the outer extensiblesections 1), which bear against the sections a, are adapted to slidelongitudinally thereon and are secured thereto by suitable keepers c.

Stirrups d are pivoted to the inner sections a, and when the sections 17are extended the said stirrups (1 may be caused to engage the inner endsof the sections b to support the latter in their extended positions. Across-bar 18 connects the inner sections or together, the ends of thesaid cross-bar bearing on the outer sections 17. Braces 19 connect theinner portions of said inner sections a to the central portion ofcross-bar 18. At the free outer end of the fork-frame is the fork 20,which is of the construction shown. The short fork-fingers 21 arepivotally attached to the head of the fork, as at 22, and are connectedtogether by a cross-bar 23. Hook-rods 24 have their outer ends pivotallyattached to two of the fingers 21, and the inner hooked ends of saidrods 24 are attached to the sections b of the side bars of thefork-frame by means of a series of adjusting-openings 25, with whichsaid bars are provided. Thereby the fingers 21 may be disposed andsecured at any desired angle with relation to the loadcarrying fingersof the fork.

A hoisting-frame 26 is pivotally connected at its lower end to thecross-bar 4 of the ground-frame, and said hoisting-frame is adapted torock or oscillate. The same is braced laterally by brace-rods 27, thelower ends of which are connected to eyebolts 28 on the ends of thecross-bar 4. When the hoisting-frame is in substantially a verticalposition, as shown in Fig. 1, the same bears against the cross-bar 14 ofthe stop-frame 13. In the upper end of the hoisting-frame is adifferential pulley 29, which has a central section 30 and sections 31on opposite sides thereof, the diameter of sections 31 being less thanthe diameter of section 30. A hoisting-rope 32 is attached to thesmaller section of differential pulley 7, is adapted to be coiledthereon and uncoiled therefrom, and said hoisting-rope is attached atits opposite .end 5 to the larger section 30 of differential pulley 29and is adapted to be coiled on and uncoiled from said section 30.Connecting-ropes 33 are attached to and adapted to be coiled upon anduncoiled from the smaller sections 31 of dif- I00 ferential pulley 29,and said ropes have hooks 34, which engage eyebolts on abar 35, which isconnected to the fork-head by rods 36. Chainsections 37 of suitablelength are attached to the said eyebolts and depend therefrom when thefork-frame is shortened, as shown in the drawings. When the said forkframe is lengthened or extended, the hooks 34 of ropes 33 are detachedfrom the eyebolts and attached to the free ends of the chains 37,whichlatter serve to increase the length of ropes 34 as is required by theextension of the length of the fork-frame.

A rocking frame 38, which I will term a canting-frame, is of V shape andis pivotally attached to the stop-frame 13 at a point near the cross-bar4, as at 39. When the said (ranting-frame is raised, it contacts withthe outer side of the cross or stop. bar 14. Said canting-frame is drawndownward normally by a spring 40. A rope 41 connects the free end of thecanting-frame to the stop-bar 14,

and said canting'frame carries a winch 42, to which is attachedguy-ropes 43, which pass through guide-eyes 44, with which thecanting-frame is provided, said guy-ropes being attached to thefork-frame near the free outer end thereof, as shown. The winch 42serves to regulate the length of the guy-ropes, as will be understood.

The operation of my invention is as follows: When the fork has beenloaded, a horse attached t0 the rope 11 in the usual manner is caused todraw outward on said rope, and thereby rotate the differential pulley7as the rope l1 uncoils from the larger section 8 thereof. The rotationof the differential pulley causes the sections 9 to slowly coil the rope33 thereon and slowly uncoil the rope 32 from the larger section 30 ofdifi'erential pulley 29 and by rotating said differential pulley causethe ropes 33 to be slowly coiled upon the smaller sections 31 of saidpulley 29, and hence maximum leverage is exerted upon the continuing toraise the fork, the frame 26 condischarges its load onto the stack orrick which is in course of erection. The horse is then backed to slackenthe rope 11, whereupon the canting-frame is drawn downward by the spring40 and caused, through the guy-ropes 43, to cant the fork-framerearward-to overcome the dead-center, the weight of the forkframe as itdescends toits initial position causing the ropes 33 to rotate thedifferential pulley 29, the rope 32 to'rotate the differential pulley 7,and the latter to reel up the rope 11 as said rope 11 is slackened.

Ordinarily while the stack is being erected the short fingers 21 of thefork-head will be disposed at'such an angle with reference to the longfingers of the fork that the hay will be discharged by its own-gravityfrom the forkwhenthe latter reaches theupper limit of its movement. Whenthe stack is nearly finished and it becomes necessary to top out thesame, the short fingers 21 are so disposed with relation to the longfingers 'of the fork that they will not discharge the load by gravityfrom the fork, but will support the same when hoisted, so that a manstationedon the top of the stack can with a hay-fork remove the loadfrom the stacker-fork and dispose the same appropriately on the cap ofthe stack While topping out and finishing the same.

Having thus described my invention, I claim- 1. In a hay-stacker, thecombination of a tached to the larger section of said latterdifferential pulley, substantially as described. fork-frame at theinitial movement of the 2. In a hay-stacker, the combination of aground-frame, a difierential pulley thereon, a fork-frame-andhoisting-frame pivotally connected to the ground-frame, adifferentialpulley carried by the hoisting-frame, ropes connecting the fork-frame tothe smaller sections of said latter dilferential pulley, a ropeconnecting the larger section thereof to the smaller section of thedifferential pulley on the ground-frame, an operating-rope attached tothe larger section of said latter differential pulley, a canting-frameand guy-ropes connecting the latter to the fork-frame, substantially asdescribed.

In a hay-stacker, the combination of a ground-frame, a differentialpulley thereon, a fork-frame and hoisting-frame pivotally connected tothe ground-frame, a differential pulley carried by the hoisting-frame,ropes connecting the fork-frame to the smaller sec tions of said latterdifferential pulley, a'rope connecting the larger section thereof to thesmaller section of the difi erential pulley on In testimony that I claimthe foregoing as the grou nd-frame, an operating-rope attached my own Ihave hereto affixed my signature in 10 to the larger section of saidlatter difierential the presence of two Witnesses.

pulley a canting-frame and uy-ropes connecting the latter to theforlz-frame, and a WILLIAM OAVETT' stop-frame to limit the movement ofsaid Witnesses:

canting and hoisting frames, substantially as O. H. BULKLEY,

described. J. T. WADDILL.

